公开(公告)号：EP1834149A2

公开(公告)日：2007-09-19

申请号：EP05796442.1

申请日：2005-09-15

申请人： Metso Paper USA, Inc.

发明人： PARENT, Laurent, Roland ,  MORRISON, David, Simpson ,  YERXA, Craig, Ernest ,  CANTOR, Rita, Elizabeth ,  KETCH, Darrell, Herbert

IPC分类号： F26B13/00 ,  F26B9/00 ,  F26B13/06

CPC分类号： D21F5/044 ,  D21F5/181 ,  F26B13/10 ,  F26B21/004

摘要： The present invention includes a nozzle insert for use in a drying machine of the type used in paper web drying. The nozzle insert of the present invention includes at least one intake having a central portion, wherein a pair of center vanes is disposed for directing airflow. The central portion is bounded by at least one turning vane adapted for directing airflow in a lateral direction. For each turning vane, there is at least one straightening vane adapted for curtailing swirling of the airflow. The vanes are oriented at optimal angles for directing the flow of the nozzle in a lateral direction, while permitting some air to penetrate the central portion through a series of ports. The intakes are bounded by a series of insulated bulkheads, which serve to direct airflow and contain heat-loss through thermal emission.